Logistics glossary

Customs duties

Definition

Customs duties are taxes imposed by governments on imported or exported goods, calculated based on the product’s tariff classification, declared value, and country of origin. Duty rates vary significantly by product type and destination country—some goods are duty-free; others face tariffs of 5-25% or higher. Customs duties increase the cost of imported goods and are a primary tool governments use to protect domestic industries and generate tax revenue.

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Why do customs duties matter?

Customs duties directly impact importers’ costs and competitiveness. A 15% duty on €100,000 of imported goods adds €15,000 to the total cost, affecting pricing and profit margins. For supply chain planning, duty costs must be calculated upfront—miscalculating duties results in budget overruns and pricing errors. Understanding origin rules and tariff classifications can significantly reduce duty costs through preferential trade agreements. For exporters, duty rates in destination countries affect demand and pricing strategy.

How do customs duties work in logistics?

When goods cross an international border, customs authorities classify them using harmonized tariff codes (HS codes) and assess applicable duty rates. The duty is calculated as a percentage of the goods’ declared value: (declared value × duty rate % = duty owed). Duty rates depend on: (1) product tariff classification, (2) country of origin, (3) applicable trade agreements. Once duties are calculated, the importer pays them before goods are released. Different countries apply different rates to the same product—electronics from EU countries may be duty-free in other EU countries, while the same electronics from China face 10-15% duty.

Factors affecting customs duty rates

  • Tariff classification (HS code) of the goods
  • Country of origin (preferential vs. standard rates)
  • Trade agreements (EU, GSP, bilateral agreements)
  • Product type (raw materials, components, finished goods)
  • Declared value (duty is percentage-based)
  • Anti-dumping duties on specific countries/products
  • Seasonal tariff rates (some products have variable rates)
  • Free trade zones and special economic areas
  • Import quotas and trade barriers

Example in practice

A Polish retailer imports 1,000 pairs of shoes worth €50,000 from a manufacturer in Vietnam. The shoes are classified under HS code 6403.99 (other footwear). Vietnamese origin shoes entering the EU face a standard tariff duty of 17%. The Polish customs broker calculates: €50,000 × 17% = €8,500 duty owed. The retailer pays €8,500 to Polish customs before goods are released.

If the same shoes were sourced from an EU manufacturer in Spain, tariff duty would be 0% (intra-EU trade is duty-free), resulting in €0 duty—a savings of €8,500. This difference significantly affects the retailer’s sourcing decisions and pricing strategy. The retailer may choose to source from higher-cost EU suppliers if duty savings offset the price difference.